Insulating device



FIG. 1 is a top, front, right perspective view of an insulating device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The even-length broken lines represent stitching that forms no part of the claimed design. The uneven-length broken lines immediately adjacent to the shaded area define the bounds of the claimed design and form no part thereof. The broken lines within the disclaimed area represents a zipper that forms no part of the claimed design. 

CLAIM The ornamental design for an insulating device, as shown and described. 